Datasheet

MAX19706
10-Bit, 22Msps, Ultra-Low-Power
Analog Front-End
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
DD
to GND, OV
DD
to OGND ..............................-0.3V to +3.6V
GND to OGND.......................................................-0.3V to +0.3V
IAP, IAN, QAP, QAN, IDP, IDN, QDP,
QDN, DAC1, DAC2, DAC3 to GND......................-0.3V to V
DD
ADC1, ADC2 to GND .................................-0.3V to (V
DD
+ 0.3V)
REFP, REFN, REFIN, COM to GND............-0.3V to (V
DD
+ 0.3V)
D0–D9, DOUT, T/R, SHDN, SCLK, DIN, CS,
CLK to OGND......................................-0.3V to (OV
DD
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
48-Pin Thin QFN (derate 27.8mW/°C above +70°C) .....2.22W
Thermal Resistance θ
JA
..................................................36°C/W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(V
DD
= 3V, OV
DD
= 1.8V, internal reference (1.024V), C
L
≈ 10pF on all digital outputs, f
CLK
= 22MHz (50% duty cycle), Rx ADC input
amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, differential Rx ADC input, differential Tx DAC output, C
REFP
= C
REFN
=
C
COM
= 0.33µF, unless otherwise noted. C
L
< 5pF on all aux-DAC outputs. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
POWER REQUIREMENTS
Analog Supply Voltage V
DD
2.7 3.0 3.3 V
Output Supply Voltage OV
DD
1.8 V
DD
V
Ext1-Tx, Ext3-Tx, and SPI2-Tx states;
transmit DAC operating mode (Tx):
f
CLK
= 22MHz, f
OUT
= 2.2MHz on both
channels; aux-DACs ON and at midscale,
aux-ADC ON
11.3
Ext2-Tx, Ext4-Tx, and SPI4-Tx states;
transmit DAC operating mode (Tx):
f
CLK
= 22MHz, f
OUT
= 2.2MHz on both
channels; aux-DACs ON and at midscale,
aux-ADC ON
16.5 20
Ext1-Rx, Ext4-Rx, and SPI3-Rx states;
receive ADC operating mode (Rx):
f
CLK
= 22MHz, f
IN
= 5.5MHz on both
channels; aux-DACs ON and at midscale,
aux-ADC ON
15.6 19
V
DD
Supply Current
Ext2-Rx, Ext3-Rx, and SPI1-Rx states;
receive ADC operating mode (Rx):
f
CLK
= 22MHz, f
IN
= 5.5MHz on both
channels; aux-DACs ON and at midscale,
aux-ADC ON
13.1
mA